384 Proceedings of the Roj/al Society of Victoria. 



Head coarsely punctate ; in front and on the flanks finely- 

 punctate ; flanks concealing two basal joints of aaitennae ; wath 

 a distinct transverse impression behind eyes. Antennae short, 

 not extending to base of prothorax ; seveuth-eighth joints 

 rather strongly transverse ; ninth-tenth still more transverse, 

 and, with the eleventh, forming a distinct club ; eleventh no 

 longer and decidedly narrower than tenth, its sides rounded and 

 apex truncate. Prothorax moderately transverse, sides rounded, 

 apex gently and continuously arcuate and distinctly narrower 

 than base, base feebly bisinuate ; densely and coarsely punc- 

 tate ; with several small, irregular impressions. Scutellum 

 small, distinctly punctate. Ehi:ra very slightly wider than 

 prothorax, with a distinct, though nan-ow, reflexed margin; 

 epipleural fold distinctly punctate ; punctate-striate, sutural 

 striae indistinct but punctures clearly defined ; interstices with 

 rather large, sparse punctures. Under surface and legs densely 

 punctate ; tibiae stout, each minutely bispinose at apex. Length, 

 4^ mm. 



Hab. — Birchip. In nests of Iridomyrmex nitidus. 



The alxlomen is sometimes darker than the upper sui'face, 

 and the prothorax than the elytra, but the shades of colour are 

 never strongly contrasted. There are usually about six pro- 

 thoracic impressions, of which four are basal ; although suffi- 

 ciently distinct, they are never sharply defined. I am unable 

 to distinguish the sexes, but some specimens are wider and 

 darker than others. 



The species is apparently a common one (Mr. Goudie has sent 

 me 12 specimens) and is readily distinguished from the cosmo- 

 politan confusum and ferrugineum by the small terminal joint 

 of antennae, the much coarser (and on the head not uniform) 

 punctures, wider body, and the apex of prothorax narrower than 

 base. It is about the size and width of Gnathocerus cornutus, 

 but rather darker. 



Brenthidae. 



Cord US hospes, Germ. 



Apparently rare with Mr. Goudie. I have taken it in the 

 nests of termites, as well as in the nests of many species of 



